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(No Model.)

H. P. RODNEY, BOOT 0R SHOE sou; TRIMMING-MAGHINE.

No. 464,289. Patented 1190.1, 1891.

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I UNITED STATES PATENT QEEIQE.

HENRY F. ROONEY, OF RANDOLPH, ASSIGNOR TO GEORGE H. P. FLAGG, OF

. BOSTON, MASSACHUSETTS.

BOOT OR SHOE SOLE TRHVHVHNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 464,289, dated December1, 1891. Application filed February 24:, 1891. Serial No. 382,576. Nomodel.)

To aZZ whom it may concern:

Be it known that I, HENRY F. ROONEY, a citizen of the United States,residing at Randolph, in the county of Norfolk and State ofMassachusetts, have invented certain new and useful Improvements in Bootor Shoe Sole Trimming Machines; and I do hereby declare the following tobe a full, clear, and exact description of theinventiomsuch as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to improvements in machines for trimming the seamsof boots or shoes; and the object of the invention is to provide amachine which will operate efficiently in cutting the edges of theleather adjoining the seam without spreading and injuring the same.

A further'object of the invention is to provide mechanism for severingthe free edges of the welt; and a further object is to provide a simpleand durable machine which is efficient in operation and can bemanufactured at a low cost.

WVith these and other ends in view the invention consists of thecombination, with a suitable frame and driving or operating mechanism,of a vertical shaft carrying a rotary cutter-head provided with a seriesof cutters or knives; and the invention further consists of anindependent welt-cutting device comprising a stationary cutter-block anda verticallymovable knife adapted to be forced against the stationaryblock to sever the free edges of the welt'of the shoe.

The invention further resides in the pecu: liar construction andarrangement of parts, as will be hereinafter more fully described andclaimed.

To enable others to understand the invention, I have illustrated thesame in the accompanying drawings, in which- Figure 1 is aperspectiveview of a machine constructed in accordance with my in vention. Fig. 2is a vertical sectional view through welt-cutting devices on line as orof Fig. 1. Fig. 3 is a detail view showing the forms of knives or bladesof the rotary cutter-head, and Figulis aview of a modified form ofdrivin g mechanism.

Like letters of reference denote corresponding parts in all the figuresof the drawings, referring to whichi A designates a base, to which isrigidly secured or made integral with a pair of uprights or standards BB. In these uprights or standards B B is journaled a horizontaldriving-shaft O, and on one end of this shaft is loosely fitted a friction-clutch band-pulley D. Between the pulley D and the uprightstandard B of the frame is a frictional disk E, keyed to the shaft 0.The opposite end of the sh aft 0 is provided with a bevel-pinion orgear-wheel a, which meshes with a similar gear-wheel b, rigidly keyed orsecured to a vertical shaft E, which has its lower end journaled orsupported in the base A, and said shaft is also supported or heldin anupright position by arms b extending outwardly from the standard B.

To the upper end of the vertical shaft F is secured the cutter-head G,which consists of two disks n, plates 9 g, and a series of cutters orknives G G arranged between these disks tangentially to the axis of thecutterhead. The cutters G are each provided with an angular cutting-edgeh (see Fig. 3) to secure a shear cut on the edges of the leatheradjacent to the seam, while the cutters G are each provided with acurved or segmental cutting-edge h. The cutting-blades or cutters G Gare arranged alternately with relascrew or bolt 2, secured to thecutter-head,

whereby the knives or cutters can be easily adjusted to cut the leathermore or less, as may be required, and can be readily removed for thepurpose of sharpening or being replaced by new knives.

The pulley D is provided with a collar or shoulder d, the outer end ofwhich has a flange d.

In the lower end of the standard 13 is fulcrumed a leverH, one end ofwhich extends outwardly and upwardly and has its bifurcated end fittedpartially around the collar 01 of the pulley D. The other inner end ofthis lever H is suitably attached to a treadle K, arranged below thebase A, and adapted to be operated by the operator to force the pulleyIOO D into contact with the disk E, and thusroout of contact with thedisk E by means of a disk E.

coiled spring Z, attached at one end to the lever II and at its otherend to the standard B.

The welt-cutting mechanism is arranged in front of the machine and atone side of the driving-shaft 0 close to the standard or upright B, andsaid welt-cutting mechanism consists of a fixed or stationarycutter-block M and a movable knife-block N, which movable knit'e-blockis guided in suitable ways m and carries a knife or cutter 0. To theupper end of the knife-block N J is secured a short vertical rod n,which is connected by a cross-piece n to another upright rod 0, thelower end of which rod 0 is connected to a suitable treadle P, arrangedbelow the base A, and adapted to be operated by the work' man to depressthe movable knife.

The stationary cutter-block M has its upper side curved, as shown inFig. 2, so as to lie in the path of the movable knife, and it isprovided with a groove Z, adapted to receive the cutting-edge of theknife or cutter O. In the ways on of the movable knife-block N are fixedthe vertical rods S, the lower ends of which are attached'to the base ofthe knifeblock and are attached to the upper part of the frame of themachine. Around the rods S, between the movable block Nand the lower endof the ways, are arranged coiled springs r, which serve to return theblock N and its attached knife or cutter to the upper end of the guidesor ways m, where the pressure is removed from the treadle P.

In Fig. 4 I have illustrated a modified form of driving mechanism, inwhich figure T and U designate a tight and loose pulley, respectively,and V designates a band-pulley secured on the horizontal shaft 0. W' Vdesignate pulleys secured, respectively, to the lower end of theknife-box and to the lower end of the cutter-shaft F, and around thepulleys V, W, and W passes a suitable belt w, and around the pulley T ispassed a belt 11, the other end of said belt 11 passing around asuitable driving-wheel.

The operation of my invention is simple, and may be briefly stated asfollows: The operator holds the shoe or boot to be trimmed across theline or in the path of the cutters G G and by pressure of the footforces the pulley D into contact with the face of the The cutter-headisthus rotated by the bevel-gears and shafts, and the operator turns theshoe gradually, so that the cutters follow the ends of the seam andoperate and trim or cut the leather adjacent to the seam. By thearrangement and construction of'cutters herein shown and described I amenabled to secure a clean shear cut of the seam, and there is noliability of spreading the leather and injuring the same, whichobjection is one of the disadvantages with many machines now in use.After the'seam has been trimmed the shoe is held in such aposition thatthe extendedfree end of the welt thereof'rests on the fixed knife-block,and the movable knife is then depressed to sever the welt, the coiledsprings returning the movable knife to its normal position as soon aspressure is removed from the treadle P. Changes in the form andproportion of parts and details of construction can be made withoutdeparting from the spirit or sacrificing the advantages of my invention.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is

1. In a sole-trimming machine, the combination of a supporting-frame, ahorizontal driving-shaft journaled in said frame, a disk rigidly securedon said driving-shaft, a friction-clutch band-pulley loosely fitted onsaid shaft, a treadle connected with a lever having a forked orbifurcated end and adapted to force the pulley into close contact withthe fixed disk, a vertical shaft, a-cutter-head attached to saidvertical shaft, and the beveled gears mounted on the horizontal andvertical shafts and meshing with each other, substantially as shown anddescribed.

2. In a sole-trimming machine, the combination, with a supporting-frame,a driving-' shaft, and a cutter-carrying shaft geared to thedriving-shaft, of a cutter-head secured on the cutter-carrying shaft andcomprising the upper and lower plates, and the detachable knives orcutter-blades arranged between the plates, eachalternate knife or cutterhaving an angular cutting-edge, and the intermediate knife orkniveshaving acurved'or concave cutting-edge, substantially as shown, for thepurpose specified.

8. In a'sole-trimming machine, the combination, with a supporting-frame,a drivingshaft, and a eutter-carrying-shaft geared to the driving-shaft,of a rotary cutter-head comprising two plates, and a series oftangential blades arranged between said plates; one or more of theblades having-an angular cutting-edge, and the alternate-blade or bladeshaving a segmental cutting-edge, the said cutting-edge of the bladesbeing in substantially the same horizontal plane, substantially as andfor the purpose described.

In testimony whereof I affix my signature-in presence of two witnesses.

HENRY F. ROONEY. Witnesses:

DANIEL J. BRENNAN, JOHN W. ROONEY.

